B21D9/00 - CPC Classification Index

ClassID:

38491 ⎘

B21D9/00 - CPC Classification

Classification description:

Bending tubes using mandrels or the like

Sub-classes:

B21D9/01 » the mandrel being flexible and engaging the entire tube length 14
B21D9/04 » the mandrel being rigid 23
B21D9/05 » co-operating with forming members 21
B21D9/08 » in press brakes or between rams and anvils or abutments; Pliers with forming dies 10
B21D9/10 » by passing between rollers 5
B21D9/12 » by pushing over a curved mandrel; by pushing through a curved die 6
B21D9/14 » Wrinkle-bending, i.e. bending by corrugating 2
B21D9/15 » using filling material of indefinite shape, e.g. sand, plastic material 20
B21D9/16 » Auxiliary equipment, e.g. machines for filling tubes with sand 7

Recent Application in this class:

20210362208

2021-11-25

FORMING APPARATUS AND FORMING METHOD

20200055106

2020-02-20

Internal Mechanical Stress Improvement Method for Mitigating Stress Corrosion Cracking in Weld Areas of Nuclear Power Plant Piping

20170191594

2017-07-06

Method for manufacturing a pipe, pipe and connection fitting assembly

20170159146

2017-06-08

Tubular strengthening and patterning method for enhanced heat transfer

20160030990

2016-02-04

Internal Mechanical Stress Improvement Method for Mitigating Stress Corrosion Cracking in Weld Areas of Nuclear Power Plant Piping

20150266075

2015-09-24

Device and method for bending pipes for pipelines

20150196946

2015-07-16

Mandrel for bending rectangular duct body

20140324096

2014-10-30

Method for assembling introducer sheath with an embolic coil device

20140084628

2014-03-27

Method of fabricating a roll-over protection structure

#10

20140007641

2014-01-09

Welded component comprising seamless bent pipe and seamless straight pipe sections and methods of manufacturing thereof

#11

20130269408

2013-10-17

METAL PIPE, AND METHOD AND DEVICE FOR PROCESSING THE SAME

#12

20130192047

2013-08-01

Method of manufacturing supporting structure, swaging jig for use therein and the supporting structure

#13

20130125608

2013-05-23

Multi-sided tube swaging apparatus and method

#14

20100160953

2010-06-24

Introducer sheath for use with an embolic coil device and methods for making and using the same

#15

20100000286

2010-01-07

Method of manufacturing a welded component comprising a seamless bent pipe and seamless straight pipe sections

#16

20090095044

2009-04-16

METHOD FOR PROLONGING SERVICE LIFE OF A MACHINE FOR BENDING TUBES

#17

20080267698

2008-10-30

QUICK-CONNECTOR FOR METALWORKING TOOL AND METHOD THEREFOR

#18

20070186603

2007-08-16

Quality analysis of tube bending processes including mandrel fault detection

#19

19265329

2025-12-30

Coldwork holes with seamless sleeve and uniform expansion